Fence-weaving loom



C. A. POHATH.

FENCE WEAWNG LOOM.

APPLICATION man Nov.2.192o.

Patented Allg. 15, 1922.

MJC? .9

A TTORNE C. A. FURATH.

FENCE WEAVING LOOM.

APPLICATION man Nov,`2.19,2o.

1,426,007, y Patented Aug. 15, 1922.

15 SHEETS-SHEET 2.

s g INVENTOR. By /L @gr A TTORNE Y.

C. A. PORATH.

FENCE WEAVlN LOOM.

APPucATxoN man Nov. 2. 1920.

Patented Aug. 15, 1922.

I5 SHEETS-SHEET 3.

C. A. PORATH.

FENCE WEAVING LGOM.

APPucATloN man Nov.2,192o.

Patented Aug. 15, 1922.

l5 SHEETS-SHEET 4.

C. A. PORATH.

FENCE WEAVING LUM.

APPLICATION msn Nov. 2, 1920.

Patented Aug. 15, 1922.

15 SHEETS-SHEET 5.

C. A. PORATH. Y.

FENCE WEAVLNG LDOM.

APPLICATION FILED Nov. '2. 1920.

1 ,426,007, Patented Aug. 15, 1922.

l5 SHEETS-SHEET 6- g' m d. @mag C. A. PORATH.

FENCE WEAVING LOOM.

APPLICATION msn Nov. 2. |920.

Patented Aug. 15, 1922.

15 SHEETS-*SHEET C. A. PORATH.

FENCE WEAVlNG LOOM.

APPucAnon FILED nov. z. 1920.

1,426,007, Patented Aug. 15, 1922.

l5 SHEETS-SHEET 8.

rf #-ag lll INVENTOR.

my il C. A. PORATH.

FENCE WEAVING LOOM.

APPLICATION man Nov. 2. 1920.

. Ptlltd llg. 15, 1922.

15 SHEETS-SHEET 9.

mz VMM M7 ifm C. A. PORATH..

FENCE WEAVING LOOM.

APPLlcmoN FILED nov.2. |920.

'Patented Aug. 15, 1922.

C. A. PURATH.

FENCE WEAVING LOOM.

APPLlcmoN mw Nov. 2. |920.

Patented Aug. 15, 1922.

l5 SHEETS-sain u.

Me cz. @0%

C. A. PORATH.

FENCE WEAVING LOOM.

APPLlcmoN man nov. 2, 1920.

Patented Aug. 15, 1922.

I5 SHEETS-SHEET 12.

C. A. PORATH.

FENCE WEAVING LOUM.

APPucMnon FILED Nov. 2. 1920.

wm mf. E gw m@ A um As um Jr/ u p /ww Y B oN m2.

C. A. PORATH.

FENCE WEAVING LUUNI.

APPucATmN man Novx 2, 19211.

Patented Aug. 15, 1922.

l5 SHEETS-SHEET I4 *6 NTOR.

C. A. PORATH.

FENCE WEAVING LOOM.

APPLICATON FILED Nov 2. 19204 Patented Aug. 15, 1922.

I5 SHEETS--SHEET I5.

INVENTOR,

UNITED sTAri-:s PArN'r oFFicE.

i CARL A. IOBATH, F KOKOHO, INDIANA, ASSIGNOB TO KOKOHO STEEL AND WIRE COMPANY, OF XOKOIO, INDIANA, A COBYOBATION 0F INDIANA.

FENCE-WEAVING LOOM.

Applicationy med `November To allfwhomz't may concern:

Be it Aknown that I CARL A. Poiwrn, a citizen of the United States, residin at Kokomo, in the county of Howard and tate of Indiana, have invented new and useful Improvements in Fence-Weaving Looms, of which the following is a specification.

Thisl invention relates to fencek weaving machines or looms of that class wherein all operations in form Y chanical, thereby pro ucing an entirely automatic machine. One feature of the invention is the means for feeding an endless strand of wire len hwise between a lurality off pairs of ine wires, the fee ing mechanism being arranged for so feeding the strand of wire that pickets of different lengths will be produced, said machine also having Uautomatically operated parts 4for making various crimps or curvatures in the pickets, and for pitioning the pickets so that the parts thereof will be properly inter- Y woven with theli-ne wires of the fence, the

',gickets being partially woven into position efore they are cut into lengths.

A further feature of theinventionis the `provision of twisters which are split or formed into companion parts, said parts being so arranged that they will separate the 'and certain of the pickets incor plurality of parts of line wires for the passage of the pickets when the parts of the twisters are separated, means being provided for automatically operating ,the sec- `tions of the twisters as Ka single one-piece twister when the parts of the twisters 'are brought together. A Y A further feature of the invention is the provision of timing means in connection with parts of the machine for regulating theV feeding mechanism for the strand of spicket forming wire` whereby longer or orter ickets may be formed, additional means seing provided for omitting the feedy of the picket formingwire at intervals.

A further feature of the invention is the rovision of ymeans for operating theftwisting devices,"` said operating means having an interrupted movement said movements bein so timed" hat pickets may lbe entere between the line wires at the end of the inovement of the twisting mechanism porated between the line wires durln the interrupted period in the operation of t e twisting mechanism, said twister operating parts having Spcciteation of Letters Patent.

the fence are me- APatented Anglia, 1922. e, lazo. serial no. 421,311.

means for reversing the twists lat the complletion of a full stroke'of the twister operating device" in one diiection, whereby the line wires will'be 'twisted a redetermined distance in one Idirection, an then twisted 1n the opposite direction usubstantially thel saine distance thereb maintainingl the line wires .in proper con ition to pass through the twisters and receive the pickets.

A further feature of the invention is the provision of means for automatically separating and brin together the sections of the twister mec anism, these operations being timed to occur between the strokes of the twister operating mechanism.

A furtheneature of the invention is the provision of means for uniformly feeding and holding the line wires under tension, `whereby the twists formed in the line wire will be uniform throughout the length of the fence structure.

A further feature of the invention is the provision of automatically operated means for' forming bends in the pickets, and for positionin the bent rtions to be interwoven wit the line wires, automatic means bein provided for .intermittently raisin and oweriiig the picket bending means, an

for impartin movement to said:bending mechanism w en in operative or inoperative positions.

A further feature of ,the invention is the provision of means for moving the line wires an ,the woven part of the fencei lstructure lengthwise for forming uniform spaces between the pickets, means also being provided for forming the woven fence into a bundle or roll, the'operation of all these various parts being performed automatic- 'ally and in timed "relation with each other. 95

ther objects and advantages will be hereinafter more fully set forth and pointed outF in the accompanying specification.

In the accompanying drawings which are made a part of thislapplication,

Figurefl isatop plan view of the machine, Figure 2,is an end elevation of the machine showing the twisting mechanism completing a stroke in oneY direction,

Figure 2' is an enlarged end elevation'of the arrangement and driving means for certainY of thewire twisting mechanism,

Fi re 3 is a view similar to Figure 2 showing the twisters in separated position and the operating mechanism for the twist- 1 1o view as seen on line 6-6 Figu ers in position to begin ,a reverse movement of the twisters,

Figure 4 isa side elevation of the machine showing the tensioning means for the line wires attached thereto, 'f

Figure 5 is an elevation of the opposite side of the`machine from that shown in Fi ure 4,

figure `6 isl an enlarged detail 1sectional re 9 Figure 7 is a detail sectional View as seen on line 7-7 Figure 1, f

Figure 8 is a detail sectional view through one of the twisters showing the manner of appl ingvand operating the tensioning means or the line wires. j

igure 8l is a sectional view as seen on line 8 8 Fi re 8,` I y Figure 9 is a front elevation of the anism shown in Figure 8,

Figure 10 is a top "plan view of the drivmechanism for the various :elements of meching' g the machine, v

Figure 11 is a sectional .view asseen on line 11--11 Figure 10; 4 Figure 12 is a sectional View as seen on i line 12-12 Figures 1 arid.10,`

Figure w13 is a sectional .view as seen on line 13-13 Figure 1,2 TJ l' Figure 14 is im elevation of the wire crimping mechanism Vas* seen from line 14-14 Figure 12, D

Figure 15 is an enlar ed sectional view as seen on line 15-15 'gure 1,

Figuiel is a similar view showing parts in a different position,

Figurel? is a sectionalview as seen on line 17-17 Figure 1, v v

Figure 18 is a similar View to Figure 17 with parts in a different iosition, n

Figure 19 is a view similar `to Figures 17 and 18 Vwith the parts in a still diii'erent position, i

Figure 19- is a detail sectional view as` seen on line 19 Figure'li), y Figure20 isfn detail sectional view as seen on line 20-20 Figure 6,

Figure 21` is a detail sectional view as seen on line 21-21 Fi ure 6, J` Figure 22 is-a detail sectional view on an enlarged scalems seen on line 22"22 Figf ure 6, Figure 23 is a sectional view on an enscalc as seen on line 2B-23' Figure 6,

Figure 24 is a detail top plan view of one of the picket bending heads,

y.Figure 25 is a detail sectional view as seen on line 25"-25 Figure 24,

`Figure 26 is a detail elevation -of one of the picket bending heads showing the means for retaining certain picketsfin operative position thereon,

Fi ure 27 is a plan view of a section of the fgncc showing the position of the picket of t ef picket bending heads showing) itl position when engaging the picket to the same, i

`Figure 30 shows bending operation,

Figure 31 is the position of the an additional step in the parts of the picket benders at the end oftheir cycle,

and

Figure 32 is o-` the ure 27.

Referring to the drawings in which similar reference numerals designatecorrespord.- lngparts throughout the several views, -1 indicates a frame (see Figs. 1, 2 and' 3) which may be constructed in any preferred manner and having end members andja cross connecting member 3, these arts being preferably fiormed of metal. ounted upon the connecting member 3 at one end of the frame (see Figs. 3, 15 and 17) is a vertically -movable bar 4 in the under face of which `are formed a plurality of v5 in whic areseated the up halves 6 of line wire twisters, the lower alves 7` of said twisters "being seatedin semi-circular receases 8 1n the cross connecting member 3, said members 6 and 7, when placed together, being preferably circular in cross section. he upper and ower halves twisters are provided vwith longitudinally extendinlg bores 9 and 10 through which are extender the line wires 11 and 12, respectively, of the fence structure. The riphcries ofthe sections 6 and 7 are proviggd adjacent their ends withfhorizontally disposed an end elevation of a section l ence as seen from' line 32-32 Figoutwardly extending flanges 13`and 14 with which engage the inwardl,

g extending flanges of plates 15 and 16 attac ed res ctivel to thebar 4 and connecting mem r` 8.` ahe lates and the interlocking iianges serve to old the two-parts of the twisters in rotating ppsition and revent the same 'from droppin out of t cir recesses whenthe upper an lower sec ions 6 and 7 are The section 6 and 7 vforming are provided with gears 17 which mesh with driving gears 18 carried by horizontally dis- Iijiosed shafts 19, the outer ends` of said shaft aving inions 20 `thereon which mesh with the teet 21 of a rack 22 (see Fig. 2), said rackpreferably'resting above sindv imons and travelin transversely 'of the tren of the shafts 19. he rack bar22 is moved longitudinali -iii o site directions by means of levers 2 and at op 'te ends o-the connecting member 3, tie lower ends of the levers 23 and 24 being pivoted to blocks 25 and 26, `which are in turn attached to the end members 2. The upper ends of the 1esemi-circular recesses 6 and 7 if the ved apart.A the twisters ics y iso vers 23 and 24 lproject a distance above the rack bar 22 an are provided with latches 27 and 28 respectively, which are adapted to enterthe notches 29 and 30 arranged in series at the opposite ends of the rack bar 22, the latches `27 and 28 projecting inwardly towards the twisters and having their free ends rounded so that they will readily enter the notches or slide thereover when one or the other of the levers is running idle. There 'are preferably two notches for co-operation with each of the latches, so that the rack will be given intermittent movement lengthwise in making a complete twist in the wires.` The levers 23 and 24 are rocked back and forth on their pivots by pivoting to the levers between their ends links 31 and 32 respectively, the opposite ends of said links being vpivoted to heads 33 and 34, and eccentrically vto the axes of said heads, and as-the heads are rotated the levers will be swung back and forth and the mo'vement thereof be positive and even with no lost motion.` This action will provide a variable speed for the rack as it will give a slower movement to the rack at the beginning and end of its strokes. As it requires two or more actions of the levers to move the rack bar 22 its full length in either direction it is necessary to provide means forwelevating one of the.

latches while the other latch is o rating the rackbar, and to this end a'p ate 35 (see Figs. 1 and 2) is slidably mounted against one face of the rack bar 22, said plate having notches 36 therein, the notches at one end of the plate'registering with the notches at the saine end of the rack bar, so that the co-operating latch ma enter the` notches in the rack bar while tie notches in the opposite end of the platerare so positioned that they .vill be out of registration with the respective notches in that end of the rack bar, conseque-ritly the latch co-operatingltherewith will slide over the upper face o rack bar and be inoperative. lengthwise automatically for shifting the notches at one end of the plate into registration with one set of the notches in the rack bar, and the notches at the op site end of the plate outlof re 'stration wit the notches at the ,opposite en of the rack bar by means of arms 37 and 38 (see Figs. 2 and 3)' said arms being pivoted between their ends to standards 39 and 40 respectively, which are carried by parts of the frame 1. The arms 37 and 38 are normally held in vertical position by means of springs 41 and 42 which are attached at one end tothe lower ends of the arms 37 and 38, and their opposite ends to parts of the frame 1. The upper ends of the arms 37 and 38 extend into the path of a pin 43 carried by tlreplate 35 and projecting through a slot 44 isa guard plate 45, the pin Nbeing so positioned that as the rack bar in making its last intermittent ratus engaged The plate 35 is movedi on the frame erated the rack bar, is moved outwardly a,

sutlicient distance to disengage the latch from the rack bar, the tension of the spring on the arm which has been moved laterally will force the plate 35 in the opposite direction, and consequently movegthe notches in the Vplate which has just been in registration with the notches in the end of the rack lastI receiving action from one of the latches and registering the notches in the opposite end of the plate a-nd rack bar. The latch cooperatin with the notches last brou ht ii/ito re stration enters said notches' an intermittently moves the rack bar in the opposite twisting action of thetwisters. A

The heads 33 and 34 are` attached t0 shafts 46 land 47 (see Figs. 1, 5 and 6), which which mesh'with bevel bears 50 and 51 re-k spectively, on a shaft 5,2, and from\which the shafts 46v and 47 ,and parts attached thereto are operated.

. In order to positively raise and lower the bar 4 and the parts of the twisting appat ereby, so as to separate the two sections of the twisters, as best (shown in Figure 3 of the drawin i 54 are mounted upon the s 'afts 46 and 47 respectively,said cams when moved to position above the shafts 46 yand 47 engaging rollers 55 and 56 at the ends of vthe vertically and 58 below the shafts 46 and47 when the cam is moved to position below the shafts 46 and 47, the upward swinging movement of the cams 53 and 54, elevating theibar 4 and parts carried thereby and causing the bar 4 to descend when the cams move downwardly to position below the shafts to which they are attached. A

The shaft 52/ is mounted infbearings 59 1 (see 1, 6 and. 10), and has one of its ends projectin through bearings `in a subframe 60, sai havin a ar 61 xed thereon =(see Figs. 1, 10 an l 11g? whichy meshes with the teeth 62 of an intermittent gear 63, the shaft `52 and ar 61 having a Geneva stop mechanism 64 (see Fig. 11), in co-operation with the gear 63 to holdthe gear 61 and shaft 52 against rotation when the teeth 62 are out of mesh with the gear 61, thereby giving intermittent operation to the twister operating mecha,

, cams 53 ,andi

movable bar 4', and with rollers 57*k shaft 52 .8'5 direction, consequently reversing the on parts of the end members 2,

iso

from any suitable source a shaft 66,said shaf thereon which mesi 68 on the shaft 65.

The present form of ickets of different le i ie understood tionof the lp as occasion may r ui the picketsbeing ta en f wire and cut form the pickets tionin of th airs ein end of wire in, and tm accom is attached.

11), said ge of the intermittent ar shaft 83 likewiser vin mechanism 84 for holding t shaft Moun it will lo forma" too aybe readily varied the parts cio-operating therewith will be the wire formin' ositively driven, the pawl being normally4 roma bale onf-rol held I intothe proper lengths to means of a spring 95. ils the s lrocket chain ration posi- 86 and partsconnectedf-therewit necessarily Ae line wires travel' at a more or less higlrate of s ed omplishing this result at times, any back lash is prevente Ahy a single strand means of aroller ratchet mechanism 86 80 n the feed roll- (see Fig. 11), which'co-operates with an ly arranged in. idler sprocket 86h 'which in turn enga es the said feed rollers sprocket chain86 between the .sproc ets 85 fts 71, the inner and 87. f intermeshing As best shown in Figure 27 this machine 85 reto, and the is arranged to form main pickets 96 and (see Fig. auxiliary pickets 97,' the auxiliary pickets t, cham being shorter than the main ickets and are ns of which the feed rollers constructed substantially U-s sped, one arm the same o g the pickets between t fence. In acc (see Figs. 2, 10, 11 a 69 is entered betwee ers 70 which are preferab one above the other, gA mounted upon sha s of said shafts hav driven gears 72 attached t e lower shaft havi 13), 74 and by mea 70 are positive] After the wire rollers 70 it enters, ing rolls 75 (see Fi mounted upon sha are positively driven b to the inner ends of ner end of the lower shaft driven b 78 (see ear 79 s aft 80.

The s sprocket said shaft 76 is 71v will be 'likewi parts bein The fee tilted and are ment when the longer p than when the sho nga rsprocket 73 forl engagement with a sprock asses throu tween -a pair lof cri the shafts 76. Th

se positively driven .in'unisorn l'ers 70 arey intermittently' i-oconnected therewitheremain idle durin one eater rotating movecomplete revolution ofthe shaft 88 an armv fed in 94, consequently the vpicket feeding mecha-J g Ifed4 nism remains idle and the feeding of one 110 gear 82 picket is omitted. Before the arm 94 makes A 10 and a com lete revolution the'cam' 98 will `have with t e teeth 62. turne out of the path of the .pawl 93, con

ax- 82 and sequentl the Vendr of the awl will' a ain neva `sto engageY lie toth 92Y and art the fee ing 115.

In' im mechanism for the pickets.-

mst rotation It Gltm Intervall In view of the fact Ithat the'picke'ts are` a Sprocket made in different lengths means are prop ,a sprocket vided for varyin the duration of the opr extending around eration of the pic et feeding mechanism and 8 and by means of this is `accomplished by attachi an arm One end of the 10()V (see Fi 10 and 12) to the hub of the thereto which s rocket w eel 87, saidfarm being referthe shaft 80, andas a l threaded onto the end of the ub of ,and operates the sai sprocket, the free end of the arm hav'- 12s arts connected theieinlg a` pawl 101 pivoted thereto, one end of lvan from the shaft w ich d therewith.

rotatably mountone end of the shaft 88, and so lon as the nd said sprocket pawlis in engagement with the test ofthe icket is bein rter picket is bein plish this result a to a shaft 83v (see Fi s. ar 82.meshi Y uponr the shaft 83 is wheel 85 around chainl 86, 'said chain also a sprocket 872y on a shaft 8 which said shafttis. drive shaft 88 has a gear 89 fixed meshes with a gear'90 on the bevel gear 79 e ibevel pinion 781m with, said Yparte are 83 and members connec The sprocket wheel 85 ed upon the shaft 88, a

`of power applied to wheel is drivenby a ratchet 91 '(see Figs. t 66 having a pinion 67 10 and 12), which ratchet has a single tooth les with a driven gear 92, and co-operating with 1said ratchet is a pawl 98 'pi'votally mounted to the outer end fence is built up of of an arm 94ixed to the shaft 83, and so 70 ngths, althou that the length a nas 'said pawl is in en gementwith the t 92 the ratchet 91 an sprocketB, and

,in engagement Ywith said tooth by 7,3'

of the picketf97 being positioned at one side 90 gh the feed of one of the main pickets, and the other mparm an equal distance at the opposite side 2 and 14), whichare of the mainl picket, and in view of making '76, and Sthese rolls y attaching gears 77 to s ipv one, picket inevery four, conse- I e inquently it is necessary to stop the feeding 76 is positively ,mechanism for the pickets duriig one-quarereto a bevel pllllOR` terof the c cle off operation o which meshes a bevel feeding mec anism.A This is accomp ished urn mounted upon a by placin a cam 98 (see Figs. 10 and 12) 100 the ickets in this manner it is necessary the icket on a sha 99, which cam at one portion of procket chain 74 passes around a the revolution thereof strikes the free iend the'lower shaft 76, and as of the pawl 98 and moves the op ositeend i positively dl'lventhe shafts thereof out of the path of the toot 92 theredriven, these by pei-mittin the arm 94 to continue its 10i revo u tion w ile the ratchet 91 and parts 'co-operates with teeth 102 of a ratchet wheel 108, said ratchet wheel beingiixed to ratchet of the shaft 88 parts co-operating therewith will rotated, the pawl 101 being normally held in engagement with the teeth 102 by means of a spring 104.

As it is necessary to shorten the feeding operation when the shorter pickets are being fed into the fence structure, a lever 105 is provided, one end of the lever being pivoted to parts of the sub-frame and the opposite end thereof provided with`a curved extension 106 for engagement with the outer end of the pawl`101', and byvarying the curvature of this extension the len h of the shorter picket `9.7 may be varie the ars v tion occasioned by the change in curvature of the* art 106. In stopping the operation of the ceding mechanism during the 'formation of the shorter picket ythe curved end of the lever 105 is movedwupwardl so that the free end of the pawl 101 wil engage the curved surface andwill be released from b the teeth of the ratchet L03 by attaching a cam` 107 to a shaft 108, said cam engaging a roller 109 on the lever 105, and as soon as the pawl engages the curved surface of the lever the pawl will be disengaged from the ratchet teeth thereby permitting the ratchet wheel 103 and shaft 88 to remain 'idle until such time as the arm 100 has rotated suiciently to release the\end of Vthe pawl 101 from the curved surface of the lever 105 wheny the pawl will again engage the ratchet 103 Jand start up the picket feeding mechanism.

As previously stated, the degree of curvature of tlie extension 106 determines the number of teeth that the pawl 101'7 will skip during the time that the pawl is eI1- gaged by the curved extension. The cam 107` is likewise so arranged that it will op`- erate the lever 105 at every fourth revolution ofthe arm 100, as the shorter picket is formed at every fourth revolution of the arm 100. The shaft 99 has a gear 110 attached thereto (see Figs. 1l and 12) while the shaft 108 has asimilar" gear 111 attached thereto. which gears both mesh with a pinion 112 on the shaft 65', both gears being driven yfrom said shaft. The picketfeed rollers 70 are vertically adjustable to adapt them for the reception of wires of greater or `less diameter, these adjustments beingr controlled by adjusting screws see Fig. l), and the crimping rollers are ikewisea? justed byy adjusting screws 75. The pickets, as 'they are lfed `between the line wires 11 and v12, pass through guides 113 (see Figs., 1, 6 and` 21), which are attached to a bar 114 extending transversely of the'line wiresVH and adjacent the imfe'r ends of the twisters for the line wires, the'guides'being elevated\ above the path of the line wires while the twisting operation 'is being.

`zntally dis 114 also carries ay presser-foot 118 whichJ engages the curved end of the picket 97 when4 the bar 114 is lowered and depresses said curved end so that the main picket 96 being fed between the line wires will pass over the curved end of the shorter picket. The strand of wire 69 is cut into lengths to form pickets by passing the strand of Vwire through a cutter-head and guide' 119 (see Figs. 6 and 20), a knife 120 being pivoted to a bracket 121, the outer end of the knife being pivoted to an arm 122 of an eccentric 123, said eccentric being attached to the shaft 52 and operated there- As best shown in Figure 2^ the line wires adjacent the to portion ofthe fence are formed relative y close together and in order to accommodate the twisters, and keep them in the same horizontal plane, one of the twisters is geared and operated from the other twister by gears 1ia adjacent the outer ends of the sections 6 and 7, said twisters lying side by side and in close proximity' to each other. By arranging the twisters in rthis manner and omitting the line wires from the twister meshing with the driving gear for the twisters the ma chine may be adapted for weaving a fence of extreme` height without changing any of the parts of themachine. In constructing that form of fence shown in Figure 27 the ends of the pickets 96 forming the top jacent. pickets, and to accomplish this result`l a bending head 124 is provided (see Figs. 1, 15, 16 and ,24), said head having stationary formers 125 on the upper surface thereof which form the curvature of the bent end of the picket, said end being car- Nried around said formers by a bending pin 126. Thispin is 'mounted on an arm 127 rwhich is-rotatabie and carries the pin in a circular path around the head, the arm and piii being driven by a bevel gear 128 which meshes with a -bevel pinion 129 von a horised shaft 130, said shaft being rotatab yh mounted in a bracket 131 which bracket also carries the bending head and parts associated therewith. The shaft 

